After clinking edit icon, The circle of center is spinning and then the screen does not change to edit mode. So I tried that I put url for edit mode directly in browser and then changed to edit mode screen but above progress bar was moving from left to right fast repeatedly
After a while, below message was popped up
"Our team has been notified. Wait a few minutes and try again. If the problem persists, contact Atlassian Support.
Error details: AbortError: The user aborted a request. Timed out at 30s"